<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>英雄列表</title>
    <link rel="stylesheet" href="./css/reset.css">
    <link rel="stylesheet" href="./css/list.css">
</head>

<body>
    <div class="container">
        <h2>英雄列表</h2>
        <button>点击获取所有 LOL 英雄</button>
        <div class="hero-list">
            
        </div>
    </div>

    <script>
        // 1. 获取元素
        let btn = document.querySelector('button');
        let heroList = document.querySelector('.hero-list');
        // 2. 绑定点击事件
        btn.onclick= function(){
              // 3. 创建xhr对象
              let x =new XMLHttpRequest();
            // 4. 开启一个请求
            x.open('get','http://localhost/getHeros');
            // 5. 发送请求
            x.send();
            // 6. 设置响应体类型
            x.responseType = 'json';

            // 7. 绑定监听
            x.onreadystatechange = function(){
                   // 8. 判断响应状态码
                   if(x.readyState === 4 && x.status === 200){
                         let res =x.response;
                         console.log(res);

                         let str = ``;
                        res.forEach(item => {
                            str+=`
                            <div class="hero-item">
                                <img src="${item.avatar}" alt="">
                                <p>${item.name}</p>
                            </div>
                            `;
                        });


                        heroList.innerHTML = str;
                   }
                // 9. 响应完成
                    // 10. 遍历获取到的数据
                        // 11. 创建html结构标签
                        // 12. 给对应标签添加属性
                        // 13. 将dom节点添加到hero-list内
            }
             
        }
      
    </script>
</body>

</html>